ISSN 2398-2977      

Cardiovascular: aortoiliac thrombosis

pequis

Synonym(s): Aorto-iliac occlusive disease


Introduction

Pathogenesis

Etiology

  • MigratingS. vulgarislarvae   Strongylus spp  .
  • Trauma?
  • Infection?

Predisposing factors

General
  • Irregular/ineffective parasite control.

Specific

Pathophysiology

  • MigratingS. vulgarislarve   →   damage endothelium   →   inflammation and thickening   →   turbulence   →   thrombus formation   →   compromised blood supply to hind limb.
  • With time, possible that recanalization occurs +/- development of collateral circulation   →   clinical improvement.
  • In UK 90% of horses have vascular lesions attributable to migrating larvae.

Timecourse

  • Chronic.
  • May be acute.

Diagnosis

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Treatment

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Prevention

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Outcomes

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Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Brianceau P & Divers T J (2001) Acute thrombosis of limb arteries in horses with sepsis - five cases (1988-1998). Equine Vet J 33 (1), 105-109 PubMed.
  • Boswell J C, Marr C M, Cauvin E R & Schramme M C (1999) The use of scintigraphy in the diagnosis of aortic-iliac thrombosis in a horse. Equine Vet J 31 (6), 537-541 PubMed.
  • Hillyer M S & Mair T S (1997) Reccurent colic in the mature horse; a retrospective review of 58 cases. Equine Vet J 29 (6), 421-424 PubMed.
  • Morgan S J, Stromberg P C, Storts R W, Sowa B A & Lay J C (1991) Histology and morphometry of Strongylus vulgaris - mediated equine mesenteric arteritis. J Comp Pathol 104 (1), 89-99 PubMed.
  • Maxie M G & Physick-Sheard P W (1985) Aortic-iliac thrombosis in horse. Vet Pathol 22 (3), 238-249 PubMed.

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